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Conditions: Erectile Dysfunction

Penile Implants - Erectile Dysfunction

Inflatable Devices

Both of the types of hydraulic, inflatable devices have hollow cylinders that are implanted within the erection chambers of the penis. In order to create an erection, these inflatable devices use a pump to transfer fluid (saline) into the cylinders via tubing. As fluid is pumped into these cylinders, they expand to enlarge or "erect" the penis. The two and three-piece penile implants differ in their location of fluid storage, mainly how this fluid is then transferred out of the cylinders when an erection is no longer desired also is different.

  • 2-piece inflatable implants - This is the simpler of the two types of inflatable device, accounting for approximately 15% of penile implants used worldwide. In the two-component penile prostheses, one component is the paired cylinders and the second component is the fluid-filled internal pump located inside the scrotum. Compression of the pump results in transfer of fluid from the back part of the cylinders and pump into the middle portion, resulting in rigidity. To end the erection with a two-component penile prosthesis, the penis is gently bent down for 5-10 seconds at its mid-shaft, resulting in the fluid being returned to the fluid-filled pump. The AMS 2-piece device (Ambicor), is the only currently available 2-piece. The advantage of this device is that it is easier to deflate and may be a better device for older men or men with poor manual dexterity. The disadvantage of this device is that in the flaccid state it always contains some fluid and thus the penis will always appear "full" (similar to the penile form after a man has a hot shower).
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